Like you, I have sleep apnea, and
use a CPAP machine, but often I wake at between 2 and
with the sensation that I am burning up. I think it's adrenalin surges waking me from apneas when I start to hit deep sleep. When I take Lunesta to try to sleep through it, it records apneas at the rate of about 25 per hour. during the period 2 to 4, despite wearing my CPAP. I have been trying to get my sleep doc to retitrate me but she says my sleep recordings (without Lunesta) look fine.